* Copyright 2005-2019, Haiku, Inc. All rights reserved.
* Distributed under the terms of the MIT License.
*
* Authors:
* Axel Dörfler <axeld@pinc-software.de>
* Ingo Weinhold <bonefish@cs.tu-berlin.de>
*/
#ifndef _KERNEL_ARCH_RISCV64_INT_H
#define _KERNEL_ARCH_RISCV64_INT_H
#include <SupportDefs.h>
#include <arch_cpu_defs.h>
#define NUM_IO_VECTORS 4096
#ifdef __cplusplus
static inline void
arch_int_enable_interrupts_inline(void)
{
SetBitsSstatus(SstatusReg{.ie = 1 << modeS}.val);
}
static inline int
arch_int_disable_interrupts_inline(void)
{
SstatusReg oldStatus{.val = GetAndClearBitsSstatus(SstatusReg{.ie = 1 << modeS}.val)};
return ((1 << modeS) & oldStatus.ie) != 0;
}
static inline void
arch_int_restore_interrupts_inline(int oldState)
{
if (oldState)
arch_int_enable_interrupts_inline();
}
static inline bool
arch_int_are_interrupts_enabled_inline(void)
{
SstatusReg status{.val = Sstatus()};
return ((1 << modeS) & status.ie) != 0;
}
#define arch_int_enable_interrupts() arch_int_enable_interrupts_inline()
#define arch_int_disable_interrupts() arch_int_disable_interrupts_inline()
#define arch_int_restore_interrupts(status) \
arch_int_restore_interrupts_inline(status)
#define arch_int_are_interrupts_enabled() \
arch_int_are_interrupts_enabled_inline()
enum {
kMSyscallSwitchToSmode = 0,
kMSyscallSetTimer = 1,
};
extern "C" status_t MSyscall(uint64 op, ...);
#endif
#endif
